Posted by **Jeff** on Monday, January 11, 2010 at 9:38pm.

If the digits 1 through 9 are written in order, it is possible to place plus and minus signs between

the numbers or to use no operation symbol at all to obtain a total of 100. For example,1 + 2 + 3 + -4 + 5 + 6 + 78 + 9 = 100

Can you obtain a total of 100 using fewer plus or minus signs than in the given example? Note

that digits, such as 7 and 8 in the example, may be combined.

## Answer This Question

## Related Questions

- math - For example, 1 + 2 + 3 + – 4 + 5 + 6 + 78 + 9 = 100 Can you obtain a ...
- Math - 1,6,3,7,9,4,5,7=17 only plus or minus can be out in between the numbers ...
- math - 2. Find two consecutive prime numbers less than 40 such that the sum of ...
- pre- algebra - Use the digits 1-9 in order. Insert operation signs and grouping ...
- Math - How can you order three whole numbers with different numbers of digits ...
- Math - Using only the digits 2,3,5 and 7 complete the following problems below. ...
- math - arrange the digits 1-9 by inserting plus or minus signs using each ditit ...
- maths - when a 3 digits number is reversed, the number decreases by 396. the ...
- algebra - 2. The sum of both digits, of either of two two-digit numbers, in ...
- math - If a question states: Use the digits 1-9 only in order. Insert operation ...

More Related Questions